DE60122238T2 - Burn-resistant and flame-propagation resistant layer or cover - Google Patents

Description

BACKGROUND THE INVENTION

These The invention relates to a burn-through and flame propagation stable Layer or coating for use in thermal and acoustic Isolation systems, such as, but not limited to, those used in commercial aircraft. Preferably is for many Applications such as commercial aircraft that burn out and flame propagation resistant Layer also resistant against water vapor passage. The invention can be used as a layer or coating, e.g. inserted between, above or behind layers of thermal and acoustic insulation material, or as a coating or bag for partially or completely wrapping one or more layers of thermal and acoustic insulation material. While the burn-through and flame propagation resistant layer or coating according to the present Invention is particularly well suited for aircraft applications, in particular if the layer or coating also penetrates against water vapor resistant is, the burn-through and can Flame spreading coating or coating also for others Applications where layers or coatings, which have these properties, are needed or desired.

The Notice of Proposed Rules (Notice of Proposed Rulemaking), by the Federal Aviation Authority (FAA) in the near future Expected to be adopted will require that thermal and acoustic isolation cover systems in commercial aircraft improved protection against burn-through and resistance to flame propagation to disposal to deliver. These systems typically include thermal and acoustic insulation covers, covered with a thin film coating or bag. In the thermal and acoustic insulation systems, which are currently being produced, affect the regulations against Blowing primarily the contents of the insulation system bag and the regulations for resistance primarily against flame propagation the film coatings used to make the bags. Previous development work by a number of manufacturers has become on the resistance the insulation inside the bags against burning or on the consistency of Film coatings against flame propagation, for the production the pouches containing the insulation are used. However, no current system has solved both problems in the same product while the Properties and low cost were provided, necessary are for far widespread commercial acceptance. Some of the systems currently are proposed in the following paragraphs.

With reference to burn through resistance, a proposed system utilizes one or more layers of a nonwoven mat made from commercially available fibers from The 3M Company of St. Paul, Minn. under the trademark "NEXTEL" as a fire barrier in the insulating cover. The mat weighs 65 g / m ² and costs $ 15.00 / m ² or more. Flame propagation characteristics remain to be addressed in connection with the film coating material.

With reference to the flame propagation resistance one proposed system uses a reinforced metallized polyvinylfluoride coating, manufactured by Facile Holdings, Inc. of Peterson, New Jersey, under the trade designations "INSULFAB 330 ^® or INSULFAB 331 ^®". The reinforced metallized polyvinylfluoride film provides the System flame propagation resistance, but weighs 44 g / m ² and costs $ 9.00 / m ² , compared to the reinforced polyester film cover currently used to make the bag, which weighs 25 g / m ² and about $ Costs 2.70 / m ² .

Another proposal for flame propagation resistance is a system which uses a reinforced polyimide film covering material, manufactured by Orcon Corporation under the trade name "KN-80 ^®". The reinforced polyimide film covering material provides the system resistance to flame propagation, but weighs 50 g / m ² and costs about $ 13.00 / m ² , compared to the reinforced polyester film cover currently used to make the bag, which weighs 25 g / m ² and costs about $ 2.70 / m ² Reinforced polyimide film covering alone does not provide significant burn through resistance.

Out US Pat. No. 3,811,997 In particular, a laminate is known which consists in particular of a layer of epoxy-impregnated glass fabric and a honeycomb structure made of Nomex nylon paper, the laminated article being coated with a polyimide or aromatic polyamide film. In claim 1 US Pat. No. 3,811,997 it is stated that the polyamide film is applied to the outer surface of the glass fabric, ie there is no direct contact between polyamide and nomex paper.

in the Contrary to this disclosure, the invention claims 1 states that the polymer film (for example polyamide) is a first main surface which blows on against the first major surface of the sheet and flame propagation resistant Paper is bound. That means it's a direct contact between polymer film and said paper, and that both to form a laminated sheet.

One Another difference between the present invention and the Reference is further that no glass fabric between polyamide and Nomexpapier is. About that In addition, the nomex paper of the present invention has no honeycomb structure.

Farther The reference does not disclose the use of mica flakes together with an aramid fiber binder. As a result, it differs the invention over the prior art disclosed in this reference, of which no Note can be taken, according to the present invention to work.

SUMMARY THE INVENTION

The preferred burn-through and flame propagation resistant layer or coating of the present invention which also penetrates against water vapor resistant is, provides a solution for a single lightweight product for both the burn-through and flame-spreading ones Requirements for lightweight thermal and acoustic insulation systems (such as for example, those used in commercial aircraft) to disposal, while also the resistance required by such insulation systems is provided against water vapor passage available. Farther can prevent burn through, flame propagation and water vapor transmission stable Layer or coating according to the present Invention easily be introduced into such isolation systems without the need to redesign the respective components of the system, for example, by making a bag that has the insulation of the system of the coating of the present invention or houses. Typically, the individual thermal and acoustic isolation components used to aircraft fuselages isolate, especially under considerable Costs to very tight tolerances (for example, length, width, thickness and configuration) designed to be precise to fit in every section of the hull. Consequently, the possibility the invention against Blowing, flame propagation and preferably water vapor passage stable Layer or coating in such insulation systems bring without the need to redesign the respective components of the system, a valuable characteristic of the present invention.

A preferred embodiment of the invention against Blowing, flame propagation and water vapor penetration resistant system includes a layer or coating that leaves a sheet against Blowing and flame propagation of resistant paper, manufactured made of aramid fibers, mica flakes and aramid fiber binders, as well as a sheet against water vapor passage and flame propagation resistant polymeric film having a major surface facing a major surface of the Sheet of paper resistant to burn-through and flame propagation is bound to form a laminated sheet. The laminated Sheet may comprise a second sheet or polymeric film bound on the main surface of burn-through and flame propagation resistant paper.

The laminated sheet can also be a scrim layer placed therein or on the leaf or one of the leaves of the polymeric film and / or against burn-through and sheet Flame propagation resistant Paper to add strength to the laminated sheet, in particular Puncture and tear resistance. Furthermore you can the sheet of polymeric film or, if used two sheets of polymeric film be one of the leaves or both leaves of the polymeric film in the laminated sheet have a second major surface, those with a heat or ultrasonic-bondable adhesive is coated (here in following " Hot glue ") for securing the laminated sheet: laminated on itself or on another Sheet to form a coating, an envelope or a bag, to contain or encase an insulating material an insulating layer or on a structure, such as the skin, frame and / or fairing of an aircraft fuselage.

When the burn through and flame propagation resistant laminated sheet is also resistant to water vapor transmission, and the laminated sheet is formed into a coating, such as a pouch or envelope, which partially or completely comprises one or more layers of thermal and acoustic insulation material, such as lightweight , flexible, fiberglass covers or sheets of polyimide foam, wraps or encloses, serves the coating, envelope or bag formed from the laminated sheet, to prevent the passage of water vapor during normal use and to prevent both burn-through and flame propagation in the case of fire. When the burn through and flame propagation resistant laminated sheet is also resistant to water vapor transmission, the laminated sheet can also be used between layers, or as a coating for one or more layers of lightweight, flexible, thermal and acoustic insulation material in an insulation system to prevent water vapor transmission to prevent the normal operation, and to prevent both burn-through and flame propagation in the case of fire. For example, in a "wallpapering" application, the laminated sheet may be used as a coating or layer located between insulation material in fuselage wall cavities and the outer skin of an aircraft fuselage (as an outer layer of an insulation system) or between insulation material in fuselage wall cavities and the interior aircraft liners (as an inner layer of an insulation system).

When an alternative to the laminated sheet described above against burning through, flame propagation and, preferably, water vapor transmission stable Layer or coating according to the present Invention a sheet of anti-burn and flame propagation resistant Paper made from aramid fibers, mica flakes and aramid fiber binder, that with a heat and / or ultrasonically weldable, Moisture and flame propagation resistant polyvinyl fluoride emulsion water-based. As with the one described above against burn-through, flame propagation and preferably water vapor passage resistant laminated sheet, the treated sheet can burn out and flame propagation resistant Paper used as a coating to thermal and acoustic insulation material (e.g., a bag or envelope shaped) can be used as a layer which is located between layers of insulating material, or as a coating over one or more layers of such insulating material. The treated sheet of the against burn and flame spread resistant Paper can be a cotton fabric sheet or layer, tied on the main surface of the paper, preferably by the heat sealable moisture and flame propagation resistant Water-based polyvinyl fluoride emulsion for strength, in particular Puncture and tear resistance, inflict.

The burn through, flame propagation, and water vapor transmission resistant layer or coating of the present invention, when used as a commercial aircraft thermal and acoustic insulation paneling system, undergoes the medium level FAA burn through test, undergoes the flame propagation test, and preferably has a permeability of 22.88 × 10 -4 ^{. 8} g / Pa · s · m ² or less (0.4 perms or less), and preferably a passage of 14.3 × 10 ^-8 g / Pa · s · m ² or less (2.5 perms or less), measured by the desiccant method of the American Society for Testing and Materials (ASTM), Test: E 96-00, entitled "Standard Test Method for Water Vapor Transmission of Materials." Preferably, the burn through, flame propagation and water vapor transmission resistant layer or coating of the present invention meets the material specifications by The Boeing Company of Seattle, Wash., for Bruchfe Strength and puncture resistance with a minimum breaking strength of 1.62 kg / cm ² [23 pounds per square inch (23 lb / in ² )] (Class 1 film BMS 8-142) and has a minimum puncture resistance of 0.91 kilograms (2 Lb). In simulated aircraft fuselage tests, thermal and acoustic aircraft insulation systems using bags and envelopes to contain the insulation liners made from the burn through, flame propagation, and water vapor resistant layers or coatings of the present invention exhibit heat and noise transmission equivalent to current systems are.

The burn-through test under consideration here is the new medium-sized Federal Aviation Authority (FAA) burn-through test as currently (May 22, 2000) through the website www.fire.tc.faa.gov (hereinafter referred to as "the medium-sized FAA burn-through test The medium-sized FAA burn-through test subjects the hot or outer side of the main surface of a test sample to the flame of an oil burner which produces a temperature of about 1100 ° C. The exit end of the oil burner nozzle is 10 centimeters (10 cm) from and directed at The medium-sized FAA burn-through test measures the heat flow of the cold or the inside at two specific locations on the cold side of the sample To pass the medium-sized FAA burn-through test, the sample must be both visible Blowing as well as a heat flow to the cold side, from 5.43 kilograms calories per square meter Prevent r (2.0 Btu / ft ² ) for four minutes.

The flame spread test referred to herein uses radiant element heat and a pilot flame and is performed similarly to the current ASTM E 648 test method and performance criteria. Like the medium-sized FAA burn through test, the Flame Spread Test (here below Defined as "the flame propagation test" on the www.fire.tc.faa.gov website In the flame propagation test, a pilot flame is applied at a zero point for a period of 15 seconds to a horizontally oriented sample sheet to pass the test , the flame must not advance more than two inches past the point of contact (the zero point) between the pilot flame and the sample sheet and the sample sheet must not support continued combustion after the pilot flame has been removed (there may be no apparent flame there) the pilot flame was removed).

SHORT DESCRIPTION THE DRAWINGS

1 to 9 are schematic cross-sections through various embodiments of the burn-through, flame propagation and preferably water vapor transmission resistant layer or coating according to the present invention.

10 FIG. 12 is a schematic perspective view of the burn through, flame propagation and preferably water vapor transmission resistant layer or coating of the present invention used as a pouch or envelope to enclose, encase or contain a thermal and acoustic insulation material. FIG.

11 is a cross section of 10 , taken in essentially along lines 11-11 in 10 ,

12 is a partial schematic cross-section through an insulation system in which the burn-through, flame propagation and preferably water vapor transmission resistant layer or coating of the present invention covers a layer of insulating material.

13 is a partial schematic cross-section through an insulation system, wherein the burn-through, flame propagation and preferably water vapor transmission resistant layers or covers according to the present invention cover layers of insulating material, are located therebetween and are covered.

14 Figure 3 is a partial schematic horizontal cross-section through an aircraft fuselage with the burn through, flame propagation and preferably water vapor transmission resistant layer or coating forming the outer layer of a thermal and acoustic isolation system.

15 is a partial schematic horizontal cross-section through an aircraft fuselage with the burn through, flame propagation, and preferably water vapor transmission resistant layer or coating forming the inner layer of a thermal and acoustic isolation system.

DESCRIPTION THE PREFERRED EMBODIMENTS

The laminates 120 . 220 . 320 . 420 . 520 . 620 and 720 the burn through, flame propagation and preferably water vapor transmission resistant layer or coating according to the present invention, schematically illustrated in FIG 1 - 7 include a sheet of paper resistant to burn through and flame propagation 22 (Burn through barrier paper 22 ) and a sheet of polymeric film 24 , which is preferably flame propagation and water vapor transmission resistant, bonded to one or both major surfaces of the burn through barrier paper 22 , 7 shows a laminate 720 comprising a separate layer of cotton fabric. The laminates 120 - 620 may also be a separate cotton layer or a polymeric film 24 comprise, reinforced with cotton fabric for further strength, in particular stitch and tear resistance.

The sheet of burn-through paper 22 includes aromatic polyamide (aramid) fibers, mica flakes and aromatic polyamide (aramid) fiber binders. Preferably, the barrier paper contains 22 between 30% and 50% by weight (wt%) of mica flakes and typically between 25 and 35% by weight of aramid fibers and between 25 and 35% by weight of aramid fiber binder.

The barrier paper thus prepared can be calendered to align the mica flakes, reduce paper thickness, and provide improved burn through protection. While barrier papers with lighter weight may be possible, the barrier paper weighs 22 typically 89 grams per square meter (89 g / ^m2 ). Preferably, the thickness of the barrier paper is> 0.0762 mm (3 mils). An example of such a burn through barrier paper is a paper manufactured and sold by EI DuPont de Nemours & Co. of Wilmington, Delaware under the trade name NOMEX ^® M Type 418 paper.

To the barrier paper 22 To provide additional water repellency, the barrier paper may be used 22 by dipping, spraying or roll coating the barrier paper 22 with a fluorocarbon or similar water repellent such as, but not limited to perfluorooctanyl. An example of such a water repellent is sold by The 3M Company of St. Paul, Minn. under the brand name "SCOTCHGUARD ^® ".

The barrier paper 22 becomes adhesive on one or two sheets of polymer film 24 bonded or hot-glued, which are preferably resistant to water vapor transmission and flame propagation. Polyester films are an example of films that are resistant to water vapor transmission but not resistant to flame propagation. Polyvinyl fluoride films and polyimide films are examples of polymeric films 24 , which are resistant to both water vapor and flame propagation. These flame propagation resistant films resist flame propagation, and preferably, when one of these horizontally extending films is exposed to a pilot flame, the flame does not exceed 5.08 centimeters (2 inches) in 15 seconds beyond the point of flame contact. When an open flame is removed from contact with such films, these films do not support continued combustion and stop burning (no continuous ignition is evident).

Commercially available examples of these films are films sold by EI DuPont de Nemours & Co. of Wilmington, Delaware, as for example, a polyester film sold under the trademark MYLAR ^®, a polyvinyl fluoride film, sold under the brand name TEDLAR ^® and a polyimide film, sold under the trade name KAPTON ^®. The movie or movies 24 are typically from 0.00508-0.0254 mm (0.2 to 1.0 mils) thick and typically weigh between 20 and 50 g / m ² . The light weight of these films 24 is partly due to the elimination of a reinforcing cotton fabric from the film. According to a particularly preferred embodiment of the present invention, the thickness of the film or films is 24 > 0.0127 mm (0.5 mil), preferably> 0.0127-0.0254 mm (0.5 to 1.0 mil). With that on the burn-through barrier paper 22 glued or heat-sealed film or films 24 reinforces the burn-through barrier paper 22 the movie or movies 24 and a cotton fabric is no longer needed in the film or films for certain applications. Preferably, the film has 24 a transmittance of 22.88 × 10 ^-8 g / Pa · s · m ² or less (0.4 perms or less), and preferably a transmittance of 14.3 × 10 ^-8 g / Pa · s · m ² or less (2.5 perms or less) as measured by the desiccant method of the American Society of Testing and Materials (ASTM), Test: E 96-00, entitled "Standard Test Methods for Water Vapor Transmission of Materials." The polyvinyl fluoride and polyimide film can be metallized, for example, by condensation of aluminum vapor on the film to reduce the permeability of the film.

Preferably, the burn through barrier paper becomes 22 and the polymeric film or films 24 bonded together by a layer or layers of hot and / or ultrasound adhesive, eg a polyester based adhesive with fire retardant additives, disposed between major surfaces of the barrier paper 22 and movies) 24 , Examples of such hot and / or ultrasound adhesives are adhesives sold by Bostik Incorporated, of Middleton, Massachusetts, under the trade designations BOSTIK THERMO GRIP ^® 1101, 1165 and 1175th

The burn-through, flame propagation and preferably water vapor transmission resistant laminated sheet 120 , shown in 1 , includes a sheet of burn-through barrier paper 22 and a sheet of polymeric film 24 wherein a major surface of the film is, for example, via a hot melt adhesive to a major surface of the burn through barrier paper 22 is bound. While bonding the polymeric film 24 on the burn-through barrier paper 22 the abrasion resistance and durability of the burn through barrier paper 22 can increase, is the polymeric film 24 preferably a film resistant to flame propagation and water vapor transmission. When the polymeric film 24 resistant to flame propagation, it can be expected that the film 24 on the side of the laminated sheet 120 which faces the flame front of a fire. When the polymeric film 24 water vapor resistant, the film restricts 24 the passage of water vapor through the laminated sheet 120 one. When the polymeric film 24 flame propagation and water vapor transmission resistant and the laminated sheet 120 is formed into a pouch or envelope containing the insulation, such as, but not limited to, the pouch or envelope 10 and 11 Resists the polymeric film 24 the passage of water vapor into the burn-through barrier paper 22 and the laminated sheet 120 and through the laminated sheet 120 in any insulation contained or wrapped within the bag or envelope formed from the laminated sheet 120 , By restricting the accumulation of water in the burn through barrier paper 22 become the integrity of the burn-through barrier paper 22 and the laminated sheet 120 better preserved and by restriction of the Collection of water in the insulation, inside the bag or envelope, formed from the laminated sheet 120 is encapsulated, the thermal and acoustic properties of an insulation system, including the sheathed insulation, are better preserved and weight build-up within the isolation system, which would adversely affect the performance of an aircraft, is avoided.

When the polymeric film 24 of the laminated sheet 120 is a polyvinyl fluoride or a polyimide film, the laminated sheet may 120 with the movie 24 of the laminated sheet on the cold or inside of the laminated sheet (the side of the laminated sheet expected to be away from the fire) and the burn-through barrier paper 22 on the hot or outside of the laminated sheet (the side of the laminated sheet that is expected to be facing any fire), or with the burn-through barrier paper 22 on the cold side of the laminated sheet and the polymeric film 24 on the hot side of the laminated sheet. Preferably, when the polymeric film 24 of the laminated sheet 120 a polyester film is the laminated sheet 120 with the polymeric film 24 oriented on the cold side of the laminated sheet and the burn-through barrier paper 22 on the hot side of the laminated sheet, leaving the burn-through barrier paper 22 provides resistance to flame propagation. Likewise, if a polymeric film 24 from any of the other laminated sheets 220 to 620 a polyvinyl fluoride or polyimide film is this laminated sheet with the polymeric film 24 be oriented on the side of the laminated sheet that is expected to face any fire, and if so, the polymeric film 24 from any of the other laminated sheets 220 - 620 is a polyester film, the laminated sheet should preferably be oriented such that the polymeric film 24 is on the side of the laminated sheet that is expected to point away from any fire.

The burn-through, flame propagation and preferably water vapor transmission resistant laminated sheet 220 , shown in 2 , includes a sheet of burn-through barrier paper 22 and two sheets of polymeric film 24 wherein main surfaces of the polymeric films 24 for example by hot melt adhesive on the two main surfaces of the burn through barrier paper 22 are bound. While the binding of the polymeric films 24 on the burn-through barrier paper 22 the abrasion resistance and durability of the burn through barrier paper 22 can increase, is at least one of the polymeric films 24 a film resistant to flame propagation and water vapor transmission. If one of the polymeric films 24 This film is resistant to flame propagation 24 on the side of the laminated sheet 220 which is expected to face the flame front of a fire. If one of the polymeric films 24 water vapor transmission resistant, limited the polymeric film 24 the passage of water vapor through the laminated sheet 220 , If one of the polymeric films 24 flame propagation and water vapor transmission resistant and the laminated sheet 220 is formed into a pouch or envelope containing insulation such as, but not limited to, the pouch or envelope 10 and 11 with the outer surface of the bag or envelope formed from the flame propagation and water vapor transmission resistant polymeric film 24 Resists this polymeric film 24 the passage of water vapor into the burn-through barrier paper 22 of the laminated sheet 220 and through the laminated sheet 220 into any insulation contained or enclosed within pouches or envelopes formed from the laminated sheet 220 , By restricting the accumulation of water in the burn through barrier paper 22 can the integrity of the burn-through barrier paper 22 and the laminated sheet 220 be better preserved and by limiting the accumulation of water in the insulation, enclosed within pouches or envelopes formed from the laminated sheet 220 , the thermal and acoustic properties of an isolation system, including an enclosed isolation system, are better preserved, and a build-up of weight within the isolation system that would adversely affect the performance of an aircraft is avoided.

The burn-through, flame propagation and preferably water vapor transmission resistant laminated sheet 320 , shown in 3 , includes a sheet of burn-through barrier paper 22 , a sheet of polymeric film 24 with an outer surface of the film bonded by, for example, hot melt adhesive to an outer surface of the burn through barrier paper 22 and a hot melt coating 26 on and coextensive with the polymeric film 24 , The hot glue coating 26 allows the laminated sheet resistant to burn through, flame propagation and, preferably, water vapor transmission 320 can be tied to: yourself or another laminated sheet 320 when molded into a pouch or envelope to contain or encase insulation on insulation material onto which the laminate is applied 320 is applied, or on a structural component, such as the frame, skin or fairing of an aircraft fuselage. Examples of hot melt adhesive coatings that can be used are polyester based adhesives with fire retardant additives and polyvinyl fluoride based adhesives. The hot glue coating 26 typically weighs between 20 and 100 g / m ² .

While bonding the polymeric film 24 on burn-through barrier paper 22 in the laminated sheet 320 the abrasion resistance and durability of the burn through barrier paper 22 can increase, is the polymeric film 24 preferably a film resistant to flame propagation and water vapor transmission. When the polymeric film 24 Flame propagation resistant, the polymeric film 24 on the side of the laminated sheet 320 which is expected to face the flame front of a fire. When the polymeric film 24 water vapor transmission resistant, limited the polymeric film 24 the passage of water vapor through the laminated sheet 320 , When the polymeric film 24 flame propagation and water vapor transmission resistant and the laminated sheet 320 is formed into a pouch or envelope containing insulation, such as, but not limited to, the pouch or envelope 11 and 12 , limits the polymeric film 24 the passage of water vapor into the burn-through barrier paper 22 of the laminated sheet 320 and through the laminated sheet 320 into any insulation contained or wrapped within pouches or envelopes formed from the laminated sheet 320 , By restricting the accumulation of water in the burn through barrier paper 22 becomes the integrity of the burn-through barrier paper 22 and the laminated sheet 320 better preserved, and by limiting the accumulation of water in the insulation, enclosed within pouches or envelopes formed from the laminated sheets 320 , the thermal and acoustic properties of an insulation system, including the sheathed insulation, are better preserved and a build-up of weight within the isolation system that would adversely affect the performance of an aircraft is avoided.

The burn-through, flame propagation and preferably water vapor transmission resistant laminated sheet 420 , shown in 4 , includes a sheet of burn-through barrier paper 22 , a sheet of polymeric film 24 wherein a major surface of the film is coated by, for example, a hot melt adhesive on a first major surface of the burn through barrier paper 22 is bound and a hot melt adhesive coating 26 deposited on and coextensive with a second major surface of the burn through barrier paper 22 , The hot glue coating 26 allows the laminated sheet resistant to burn through, flame propagation and water vapor transmission 420 on itself or another laminated sheet 420 when formed into a pouch or envelope to contain or encapsulate insulation, insulation material onto which the laminated sheet is bonded 420 is applied, or on a structural component, for example, the frame, the skin or panels of an aircraft fuselage. Examples of hot melt adhesive coatings that can be used are polyester based adhesives with fire retardant additives and polyvinyl fluoride based adhesives. The hot glue coating 26 typically weighs between 20 and 100 g / m ² (dry weight).

While bonding the polymeric film 24 on burn-through barrier paper 22 in the laminated sheet 420 Abrasion resistance and durability of burn through barrier paper 22 can increase, is the polymeric film 24 preferably a film resistant to flame propagation and water vapor transmission. When the polymeric film 24 Resistant to flame propagation, the polymeric film 24 on the side of the laminated sheet 420 which is expected to face the flame front of a fire. When the polymeric film 24 permeable to water vapor, the polymeric film limits the passage of water vapor through the laminated sheet 420 , When the polymeric film 24 flame propagation and water vapor transmission resistant and the laminated sheet 420 into a pouch or envelope containing insulation such as, but not limited to, the pouch or envelope 10 and 11 Resists the polymeric film 24 the passage of water vapor into the burn-through barrier paper 22 of the laminated sheet 420 and through the laminated sheet 420 into any insulation, contained or enclosed within pouches formed from the laminated sheet 420 , By restricting the accumulation of water in the burn through barrier paper 22 becomes the integrity of the burn-through barrier paper 22 and the laminated sheet 420 better preserved and by limiting the accumulation of water in the insulation, enclosed within pouches or envelopes formed from the laminated sheet 420 , the thermal and acoustic properties of an insulation system, including the sheathed insulation, are better preserved and a build-up of weight within the isolation system which would adversely affect the performance of an aircraft is avoided.

The burn-through, flame propagation and preferably water vapor transmission resistant laminated sheet 520 , shown in 5 , includes a sheet of burn-through barrier paper 22 , a sheet of polymeric film 24 with a major surface of the film bound by, for example, hot melt adhesive to a first major surface of the burn through barrier paper 22 , a heat-sealable coating 26 deposited on and coextensive with a second major surface of the burn through barrier paper 22 and a hot-melt coating 26 deposited on and coextensive with a second surface of the sheet of polymeric film 24 , The hot glue coatings 26 allow the laminated sheet resistant to burn through, flame propagation and water vapor transmission 520 can be tied: on yourself or one another laminated sheet, when formed into a pouch or envelope to contain or encase insulation, onto insulation material onto which the laminate is laminated 520 is applied, or on a structural component, such as the frame, skin or panels of an aircraft fuselage. Examples of hot melt adhesive coatings that can be used are polyester based adhesives with fire retardant additives and polyvinyl fluoride based adhesives. The hot glue coatings 26 typically weigh between 20 and 100 g / m ² (dry weight).

While bonding the polymeric film 24 on the burn-through barrier paper 22 in the laminated sheet 520 Abrasion resistance and durability of burn through barrier paper 22 can increase, is the polymeric film 24 preferably a flame propagation and water vapor transmission resistant film. When the polymeric film 24 Resistant to flame propagation, the polymeric film 24 on the side of the laminated sheet 520 which is expected to face the flame front of a fire. When the polymeric film 24 is permeable to water vapor, the film limits 24 the passage of water vapor through the laminated sheet 520 , When the polymeric film 24 flame propagation and water vapor transmission resistant and the laminated sheet 520 is formed into a pouch or envelope containing insulation such as, but not limited to, the pouch or envelope 10 and 11 Resists the polymeric film 24 the passage of water vapor into the burn-through barrier paper 22 of the laminated sheet 520 and through the laminated sheet 520 into any insulation, contained or enclosed within pouches or envelopes formed from the laminated sheet 520 , By restricting the accumulation of water in the burn through barrier paper 22 can the integrity of the burn-through barrier paper 22 and the laminated sheet 520 be better preserved, and by limiting the accumulation of water in the insulation, enclosed within pouches or envelopes formed from the laminated sheet 520 , the thermal and acoustic properties of an insulation system, including the enclosed insulation, are better preserved and weight build-up within the isolation system, which would adversely affect the performance of an aircraft, is avoided.

The burn-through, flame propagation and preferably water vapor transmission resistant laminated sheet 620 , shown in 6 , includes a sheet of burn-through barrier paper 22 , two sheets of polymeric film 24 wherein the major surfaces of the film are coated by, for example, a hot melt adhesive on the two major surfaces of the burn through barrier paper 22 are bonded and hot melt adhesive coatings 26 containing each sheet of polymeric film 24 overlay and are therefore the same area. The hot glue coatings 26 allow the laminated sheet resistant to burn through, flame propagation and water vapor transmission 620 on itself or another laminated sheet 620 when bonded to a pouch or envelope to contain or encapsulate insulation on insulating material to which the laminated sheet is attached 620 is applied, or on a structural component, for example, the frame, skin or panels of an aircraft fuselage. Examples of hot melt adhesive coatings that can be used are polyester based adhesives with fire retardant additives and polyvinyl fluoride based adhesives. While the hot glue coatings on both sheets 24 can be shown applied to the polymeric film, the hot melt adhesive on only one of the sheets of polymeric film 24 be applied. The hot glue coatings 26 typically weigh between 20 and 100 g / m ² (dry weight).

While the binding of the polymeric films 24 on the burn-through barrier paper 22 in the laminated sheet 620 the abrasion resistance and durability of the burn through barrier paper 22 may be at least one of the polymeric films 24 a film resistant to flame propagation and water vapor transmission. If one of the polymeric films 24 Resistant to flame propagation, this polymeric film 24 on the side of the laminated sheet 620 which is expected to face the flame front of a fire. If one of the polymeric films 24 water vapor transmission resistant, limited this polymeric film 24 the passage of water vapor through the laminated sheet 620 , If one of the polymeric films 24 flame propagation and water vapor transmission resistant and the laminated sheet 620 into a pouch or envelope containing insulation such as, but not limited to, the pouch or envelope 10 and 11 wherein the outer surface of the pocket is of the flame propagation and water vapor transmission resistant polymeric film 24 is resistant to this polymeric film 24 the passage of water vapor into the burn-through barrier paper 22 of the laminated sheet 620 and through the laminated sheet 620 in any insulation, contained or enclosed within pouches or envelopes formed from the laminated sheet 620 , By restricting the accumulation of water in the burn through barrier paper 22 becomes the integrity of the burn-through barrier paper 22 and the laminated sheet 620 better preserved and by limiting the accumulation of water in the insulation enclosed within the bags or envelopes formed from the laminated leaf 620 , the thermal and acoustic properties of an insulation system, including the enclosed insulation, are better preserved and a buildup of weight within the isolation system that could adversely affect the performance of an aircraft is avoided.

The sheet resistant to burn through, flame spread and preferably water vapor transmission 720 , shown in 7 , includes a sheet of burn-through barrier paper 22 , a sheet of polymeric film 24 wherein a first major surface of the film faces a major surface of the burn through barrier paper 22 is bound and a sheet of cotton fabric 28 bonded to a second major surface of the polymeric film 24 , for example by a hot glue. Unlike the cotton fabric 28 , bound to the sheet of polymeric film 24 In order to increase the resistance to puncture and tearing of the laminate, the laminated sheet is 720 the same as the laminated sheet 120 , Although not shown, the laminated sheets 220 . 320 . 420 . 520 and 620 also a sheet or a layer of cotton fabric 28 overlaid and with adhesive on the burn-through barrier paper, interleaved and both on the burn-through barrier paper 22 as well as the sheet or one of the sheets of polymeric film 24 bound or overlaid and bound to the sheet or one of the sheets of polymeric film 24 , Unlike the introduction of the cotton fabric 28 In order to increase the puncture and tear resistance of the laminated sheet, the laminated sheets would be 220 - 620 otherwise the same. Commercially available nylon, NOMEX, polyester, fiberglass and other similar fiber fabrics may be considered to be the laminated fiber sheets 120 to 720 be used. Instead of placing the reinforcing cotton fabric in the laminated sheets 120 - 620 as separate layers, the reinforcing cotton fabrics can also be used in the laminated sheets 120 to 620 using cotton fabric reinforced polymeric films 24 be introduced.

The burn through, flame propagation and water vapor transmission resistant sheets, layers or coatings 820 and 920 according to the present invention, schematically in FIG 8th and 9 shown include a sheet of burn-through barrier paper 22 which is treated with a hot and / or ultrasonically adhesive, water vapor and flame propagation resistant water-based polyvinyl fluoride emulsion (hot melt adhesive). Preferably, the resistant to burn through, flame propagation, water vapor transmission leaves 820 and 920 a permeability of 4.0 perms or less, and preferably a permeability of 2.5 perms or less. In addition, a sheet or layer of cotton fabric 28 on a major surface of the burn-through barrier paper 22 in the sheet 920 out 9 bonded, preferably with the hot melt emulsion, to the puncture and tear resistance of the sheet 920 to increase. Although not shown, the sheet may 820 out 8th also a layer or sheet of cotton fabric, bonded to a major surface of the burn-through barrier paper 22 include. Commercially available nylon, NOMEX, polyester and cotton fabrics may be used as the fiber sheets for sheets 820 to 920 be used. The sheet of burn-through paper 22 can work on one or both main surfaces, as in 8th respectively. 9 are dip, spray or roll coated with the water-based hot-stick water vapor and flame spread resistant polyvinyl fluoride emulsion. Preferably, the hot-stick water vapor penetration and flame propagation resistant polyvinyl fluoride emulsion (s) are weighed (water based) 30 between 20 and 100 g / m ² (dry weight). Coating of burn through barrier paper 22 The water-based hot-tackable water vapor and flame propagation resistant polyvinyl fluoride emulsion has several advantages. The water-based polyvinyl fluoride emulsion can improve the durability and flexibility of the burn through barrier paper 22 increase. The water-based polyvinyl fluoride emulsion can provide the water vapor transmission resistance required for the sheets when used to form the insulation pockets or envelopes for most airplanes without the use of the sheet (s) of polymeric film 24 , Since the water-based polyvinyl fluoride emulsion is heat-sealable, the water-based polyvinyl fluoride emulsion coating (s) can be used: the sheets resistant to burn through, flame propagation and water vapor transmission 820 and 920 on yourself or other leaves 820 or 920 to bind to form a pouch or envelope to contain or encapsulate insulation material on insulation material to which the leaves 820 and 920 be applied, or on a structural component, for example, the frame, skin or panels of an aircraft fuselage. The water-based polyvinyl fluoride emulsion also has excellent fire resistance and low evolution of toxic gas during combustion. An example of a heat-sealable, water vapor and flame propagation resistant polyvinylfluoride water based emulsion is a water-based polyvinylfluoride sold by Elf Atochem North America, Inc. of King of Prussia, Pennsylvania, under the brand name KYNAR ^®.

If the sheet resistant to burn through, flame propagation and water vapor transmission 820 is formed into a pouch or envelope containing insulation such as, but not limited to, the pouch or envelope 10 and 11 wherein the coated surface forms the outer surface of the bag or pouch, or if the burn-through, Flammausbrei tion and water vapor transmission resistant sheet 920 is formed into a pouch or envelope, such as, but not limited to, the pouch or envelope 10 and 11 , Limits the hot and / or ultrasonically bondable water vapor and flame propagation resistant polyvinylfluoride emulsion coating 30 water-based the passage of water vapor into the burn-through barrier paper 22 of the leaf 820 or 920 and through the sheet 820 or 920 into any insulation, contained or enclosed within pouches or envelopes, formed from the sheets 820 or 920 , By restricting the accumulation of water in the burn through barrier paper 22 becomes the integrity of the burn-through barrier paper 22 and the leaf 820 or 920 better preserved and by limiting the accumulation of water in the insulation, enclosed within pouches or envelopes formed from the sheet 820 or 920 , the thermal and acoustic properties of an insulation system, including the enclosed insulation, are better preserved and a build-up of weight within the isolation system that would adversely affect the performance of an aircraft is avoided.

In addition to other applications where resistance to burn through and flame propagation, or where burn through, flame spread, and water vapor transmission resistance is desired or required, the burn through, flame propagation, and water vapor transmission resistant layers or coatings may be desirable 120 to 920 used to hold a pouch or envelope 40 forming a layer of thermal and acoustic insulation material 42 includes, includes, or envelops, such as one or more lightweight flexible fiberglass insulation liners or one or more polyimide foam sheets, as shown in FIG 10 and 11 shown. The bag or envelope 40 , as in 10 and 11 shown, includes two leaves 44 and 46 from one of the layers or coatings 120 to 920 that welded together or otherwise attached to the strip 48 connected to the bag or envelope 40 to build. As shown, two leaves 44 and 46 the layers or coatings 120 to 920 used to bag or envelope 40 to form, containing the insulation 42 , the bag or envelope 40 from a sheet of layers or coatings 120 to 920 getting produced. As in 12 and 13 For some applications, one or more leaves may be shown 50 of layers or coatings 120 to 920 also main surfaces of layers) of thermal or acoustic insulation 42 such as lightweight, flexible fiberglass or polyimide foam insulation material, be covered by it or be attached therebetween. Although not shown, the leaves may 50 also cover the sides and end edges of the insulation layer (s), as well as the main surface (s) of the insulation layer (s).

Examples of lightweight, flexible fiberglass and foam insulation materials that may be included in thermal and acoustic insulation systems using burn through, flame propagation and, preferably, water vapor transmission resistant layers or coatings 120 to 920 as a coating to completely or partially encase or contain the insulating materials, or as layers overlaying, covered, or interposed by the thermal and acoustic insulation layer (s), are lightweight, flexible fiberglass insulation materials sold by Johns Manville International, Inc. under the trade designations MICROLITE AA ^® (24 kg / m ^3, 9.6 kg / m ³ or 6.7 kg / m ³ insulation) (a 1.5 PCF [pounds per cubic foot], 0 , PCF 6 or 0.42 pcf insulation) and MICROLITE AA ^® Premium NR fiber glass (a 19.2 kg / m ^3, 8.0 kg / m ³ or 5.45 kg / m ³⁾ (1,2 PCF, PCF or 0.5 0.34 pcf insulation), as well as polyimide, sold by In-Spec-Foam from Plano, Texas, under the trade name INSULMIDE ^®.

14 and 15 show schematically insulation systems for an aircraft fuselage 60 in which the insulation in a cavity of the trunk between the outer skin 66 and the frame 68 of the hull 60 and the panels 70 the aircraft cabin is located. As in 14 shown, there is a leaf 62 from one of the layers or coatings 120 to 920 between pockets 64 from insulation in the cavities of the fuselage and the outer skin 66 and frame 68 of the hull (on the outside of the isolation pockets) to provide a barrier to burn through, flame spread and preferably water vapor transmission. As in 15 shown, there is a leaf 62 from one of the layers or coatings 120 to 920 between pockets 64 the insulation in the cavities of the fuselage and the panels 70 the aircraft cabin (on the inside of the isolation pockets) to provide a barrier resistant to burn through, flame spread and preferably water vapor transmission. The leaves 62 out 14 and 15 are attached to the fuselage by pins, clamps, or other conventional fasteners as used in the aircraft industry.

Thermal and acoustic insulation systems are made using the inventive burn through, flame propagation and water vapor resistant laminate coatings examined. The laminates (System Samples 1-8) each comprise a sheet of mica filled paper from NOMEX ^® M-418 type with a sheet or film that is bonded by hot melt adhesive coating on the paper. The laminates are used as coatings for both the inside and the cold side as well as the outside or hot side of the system. Two layers of lightweight (6.7 kg / m ³ or 0.42 lbs / ft ^3), flexible fiberglass insulation (fiberglass insulation sold by Johns Manville International, Inc. of Denver, Colorado, ^® under the brand name Microlite AA -insulation) between the laminate coatings.

DURCHBRENNTEST

The system samples are subjected to the FAA medium burn test and the flame propagation test. The average FAA burn through test is passed if there are 240 or more seconds to failure and the heat flow at both cold side locations, as specified in the test (Flux 1 and Flux 2), is less than 5.43 kilograms at 240 seconds Calories per square meter per second is (2.0 Btu / ft ² / second). Seven of the eight system samples pass the medium FAA burn through test and all system samples pass the flame propagation test. TESTED SYSTEM SAMPLES

BY BURNING TEST

In describing the invention, certain embodiments have been used to illustrate the invention and the practice thereof. However, the invention is not limited to these specific embodiments, since other embodiments and modifications within the spirit of the invention will be readily apparent to those skilled in the art upon reading this specification. Accordingly, the invention is not intended to be limited to the specific embodiments disclosed, but rather These limitations are limited only by the claims appended hereto.

Claims (37)

An anti-burn and flame spread stable laminated sheet, having a sheet of one against burning and flame propagation resistant Paper of aramid fibers, mica flakes and aramid fiber binder and a first sheet of a polymer film having a first major surface, the on a first main surface of the sheet from a against burn and flame spread resistant Paper is bound and with the sheet from blowing against and flame propagation resistant Paper forms a laminated sheet. The burn-through and flame propagation resistant laminated Sheet according to claim 1, wherein: the sheet against burning and flame propagation resistant Paper from about 30% to about 50% by weight (wt%) mica contains. The burn-through and flame propagation resistant laminated Sheet according to claim 1 or 2, wherein: the sheet against burning and flame propagation resistant Paper treated with a fluorocarbon is made up of the sheet against water burning and flame propagation resistant paper more water repellent too do. The burn through and flame propagation resistant laminated sheet according to at least one of the preceding claims, wherein: said first sheet of polymer film is a water vapor transmission resistant film having a water vapor transmission rate of 22.88 × 10 ^-8 g / Pa · s · m ² or less. The burn through and flame propagation resistant laminated sheet of at least one of the preceding claims, wherein: the first sheet of polymeric film is a water vapor transmission and flame propagation resistant polymeric film having a water vapor transmission rate of 22.88 x 10 ^-8 g / Pa · s · m ² or fewer. The burn through and flame propagation resistant laminated sheet of at least one of the preceding claims, wherein: the first sheet of polymeric film is a water vapor transmission and flame propagation resistant polymeric film having a water vapor transmission rate of 22.88 x 10 ^-8 g / Pa · s · m ² or less, selected from a group consisting of polyvinyl fluoride and polyimide films. The burn-through and flame propagation resistant laminated Sheet according to at least one of the preceding claims, in which: a second major surface of the first sheet of polymer film with a hot glue is coated. The burn-through and flame propagation resistant laminated Sheet according to at least one of the preceding claims, in which: a second major surface of the leaf against burn-through and flame propagation resistant Paper with a hot glue is coated. The burn-through and flame propagation resistant laminated Sheet according to at least one of the preceding claims, in which: the laminated sheet is reinforced with cotton fabric, about puncture and tear resistance of the laminated sheet to improve. The burn-through and flame propagation resistant laminated Sheet according to claim 7, including: one Sheet made of cotton fabric, which is coated with hot glue is bonded to the polymer film to the puncture and tear resistance of the laminated sheet to improve. The burn through and flame propagation resistant laminated sheet according to claim 8, including: a sheet of cotton fabric coated by hot melt adhesive coating against burn through and Flame spread resistant paper is bonded to the laminated sheet to improve the puncture and tear resistance of the laminated sheet. The burn through and flame propagation resistant laminated sheet of at least one of the preceding claims, including: a second sheet of polymeric film having a first major surface bonded to a second major surface of the burn through and flame propagation resistant paper sheet and the at least one of the first and second second sheet of polymer film is resistant to flame propagation and water vapor transmission and has a water vapor transmission rate of 22.88 × 10 ^-8 g / Pa · s · m ² or less. The burn-through and flame propagation resistant laminated Sheet according to claim 12, wherein: second main surfaces of the first and second Sheet of polymer film are coated with a hot melt adhesive. The burn-through and flame propagation resistant laminated Sheet according to at least one of the preceding claims, in which: the thickness of said sheet against burning and flame propagation resistant Paper> 3 mil is. The burn-through and flame propagation resistant laminated Sheet according to at least one of the preceding claims, in which: the thickness of the first sheet of polymer film> 0.0127 mm (0.5 mil) is. A burn through, flame propagation and moisture vapor resistant sheet comprising: a sheet of burn through and flame propagation resistant paper having first and second major surfaces comprising: aramid fibers, mica flakes and aramid fiber binder, the burn through and flame propagation resistant sheet on the first major surface heat-sealable, moisture and flame propagation-resistant, water-based polyvinyl fluoride emulsion coating and has a water vapor permeability of 22.88 × 10 ^-8 g / Pa · s · m ² or less. That against burning through, flame propagation and water vapor transmission stable Sheet according to claim 16, wherein: the sheet against burning and flame propagation resistant Paper from about 30% to about 50% by weight mica. The burn through, flame propagation and water vapor transmission resistant sheet according to claim 16 or 17, wherein: the polyvinyl fluoride coating is between 20 and 100 g / m ² in dry weight. That against burning through, flame propagation and water vapor transmission stable Sheet according to at least one of the claims 16 to 18, including: one Leaf of reinforcing Cotton fabric, which faces the main surfaces of the sheet Burning and flame propagation of permanent paper is bound to the puncture and tear resistance of against burn-through, flame propagation and water vapor transmission resistant To increase leaf. That against burning through, flame propagation and water vapor transmission stable Sheet according to at least one of the claims 16 to 19, including: one Leaf of reinforcing Cotton fabric, which by the heat-adhesive polyvinyl fluoride coating on the first main surface of the sheet of paper resistant to burn through and flame propagation is going to be the puncture and tear resistance against burning through, flame propagation and water vapor transmission resistant To increase leaf. That against burning through, flame propagation and water vapor transmission stable Sheet according to at least one of the claims 16 to 20, wherein: the sheet against burning and flame propagation resistant Paper a second main surface has that with a heat-stickable, Moisture and flame propagation resistant polyvinyl fluoride emulsion coating water-based treatment. The burn-through and flame propagation resistant laminated Sheet according to at least one of the claims 16 to 21, wherein: the thickness of said sheet against Blowing and Flame Spreading Resistant Paper> 0.0762 mm (3 Mil) is. A burn-through and flame propagation resistant insulation system, comprising: a laminated resistant to burn through and flame spread Sheet according to at least one of the claims 1-15, one Layer of lightweight, flexible, thermal and acoustic Insulating material, wherein the layer of insulating material is first and second major surfaces has and the laminated sheet is a major surface of the Layer of insulation material covered. On against burn-through, flame propagation and water vapor passage stable Isolation system, comprising: against burn-through, flame spread and water vapor passage resistant Sheet according to at least one of the claims 16 to 22, a layer of lightweight, flexible, thermal and acoustic insulation material, wherein the layer of the insulating material has first and second major surfaces and this against burn-through, flame propagation and water vapor transmission stable Leaf a main surface the layer of insulating material covered. The insulation system resistant to burn-through and flame propagation according to claim 23 or 24, wherein: the layer of lightweight, flexible, thermal and acoustic insulation material, a fiberglass insulation material is. The insulation system resistant to burn-through and flame propagation according to claim 23 or 24, wherein: the layer of lightweight, flexible, thermal and acoustic insulation material, a polyimide foam insulation material is. The insulation system resistant to burn-through and flame propagation according to at least one the claims 23 to 26, wherein: the system is inside a cavity a fuselage, wherein the cavity is an outer side that has through an outer metal skin is formed, as well as a frame system and an inside through Cabin paneling is made and the laminated Sheet between the insulating layer of the insulation system and the outside the cavity is mounted. The insulation system resistant to burn-through and flame propagation according to at least one the claims 23 to 26, wherein: the system is inside a cavity a fuselage, wherein the cavity is an outer side that has through an outer metal skin is formed, as well as a frame system and an inside through Cabin paneling is made and the laminated Sheet between the insulating layer of the insulation system and the Inside the cavity is mounted. The insulation system resistant to burn-through and flame propagation according to claim 27 or 28, wherein: the insulation layer a variety of enclosed insulation components includes. An insulation system resistant to burn-through and flame propagation out: a serving, formed from a burn-through and flame propagation resistant laminated sheet according to at least one of the claims 1 to 15, a layer of lightweight, flexible, thermal and acoustic insulation material contained in the enclosure is. The burn through and flame propagation resistant insulation system of claim 30 wherein: the first sheet of polymeric film of the laminated sheet opposes water vapor passage and flames propagation resistant polymeric film having a water vapor permeance of 22.88 X 10 ^-8 g / Pa · s · m ² or less and the second sheet of polymeric film having an outer surface of the sheath forms, into the continual passage of water vapor burn through and flame propagation Paper and to restrict the insulation layer. The burn through and flame propagation resistant insulation system according to claim 30 or 31, wherein: the first sheet of polymer film of the laminated sheet is a water vapor transmission and flame propagation resistant polymer film having a water vapor transmission rate of 22.88 x 10 ^-8 g / Pa · s · m ² or less, selected from the group consisting of polyvinyl fluoride and polyimide films, and the first sheet of polymeric film forms an outer surface of the envelope to restrict the passage of water vapor into the burn through and flame propagation resistant paper and the insulating layer. An insulation system resistant to burning and flame propagation out: a serving, formed from a resistant to burn through, flame propagation and water vapor transmission sheet according to at least one of the claims 16 to 22, a layer of lightweight, flexible, thermal and acoustic insulation material contained in the enclosure is. That against burning through, flame propagation and water vapor transmission stable Isolation system according to claim 33, wherein: the heat-stickable Polyvinylfluoridbeschichtung forms an outer surface of the enclosure to the passage of Water vapor in the burn-through and flame propagation resistant paper and restrict the insulation layer. The insulation system resistant to burn-through and flame propagation according to at least one the claims 30 to 34, wherein: the layer of lightweight, flexible, thermal and acoustic insulation material, a fiberglass insulation material is. The insulation system resistant to burn-through and flame propagation according to at least one the claims 30 to 34, wherein: the layer of lightweight, flexible, thermal and acoustic insulation material, a polyimide foam insulation material is. The insulation system resistant to burn-through and flame propagation according to at least one the claims 30 to 36, wherein: the system is located in a cavity of an aircraft fuselage is located, wherein the cavity has an outer surface, which consists of an outer metal skin is formed, as well as a frame system and an inside, by cabin lining panels is formed.